bus_add_device(9)

💅 bus_add_device(9) — the Kernel API Manual page you've been waiting for

okay so this is a page straight out of the Kernel API Manual, and it's literally about introducing a device to its bus. like, matchmaking but for kernel objects. slay.

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✨ NAME ✨

bus_add_device — bestie's whole job is just add device to bus. that's it. that's the vibe. 🎀

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🌸 SYNOPSIS 🌸

int bus_add_device (struct device *dev );

yep, she returns an int. the signature is exactly that, spaces and all — don't @ me, just copy it verbatim. 💖

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🦋 ARGUMENTS 🦋

• dev — the device being added. that's the one. the main character. the device we're rolling out the pink carpet for. 👑

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🔥 DESCRIPTION 🔥

so when you call this, three (3) things happen, and honestly each one eats:

• 🫶 Add device's bus attributes. — the device gets its bus attributes attached, and they're giving "getting ready with my girls" energy.
• 🔗 Create links to device's bus. — we spin up links pointing back to the device's bus. it's the situationship made official step, no cap.
• 📋 Add the device to its bus's list of devices. — and finally the device gets appended to its bus's list of devices. officially on the roster. periodt. ✨

that's the whole description. three bullets, zero fluff, all iconic.

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👑 SEE ALSO 👑

Kernel file ./drivers/base/bus.c — and here's the whole friend group, every single one, fr fr:

• bus_to_subsys(9)
• bus_for_each_dev(9)
• bus_find_device(9)
• bus_for_each_drv(9)
• bus_probe_device(9)
• bus_remove_device(9)
• bus_add_driver(9)
• bus_remove_driver(9)
• bus_rescan_devices(9)
• device_reprobe(9)
• bus_register(9)
• bus_unregister(9)
• subsys_dev_iter_init(9)
• subsys_dev_iter_next(9)
• subsys_dev_iter_exit(9)
• subsys_system_register(9)
• subsys_virtual_register(9)
• driver_find(9)
• bus_get_dev_root(9)

go read them. iykyk. 🧚

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💜 the cute sign-off 💜

file location is ./drivers/base, version/date stamp is October 2026, and that's the bus_add_device(9) page, wrapped. mwah. 💋🌸🦋

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